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CSSStyleDeclaration.h
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/*
* Copyright (c) 2018-2023, Andreas Kling <[email protected]>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/String.h>
#include <AK/Vector.h>
#include <LibWeb/Bindings/PlatformObject.h>
#include <LibWeb/CSS/CSSStyleValue.h>
#include <LibWeb/CSS/GeneratedCSSStyleProperties.h>
#include <LibWeb/CSS/StyleProperty.h>
namespace Web::CSS {
class CSSStyleDeclaration
: public Bindings::PlatformObject
, public Bindings::GeneratedCSSStyleProperties {
WEB_PLATFORM_OBJECT(CSSStyleDeclaration, Bindings::PlatformObject);
JS_DECLARE_ALLOCATOR(CSSStyleDeclaration);
public:
virtual ~CSSStyleDeclaration() = default;
virtual void initialize(JS::Realm&) override;
virtual size_t length() const = 0;
virtual String item(size_t index) const = 0;
virtual Optional<StyleProperty> property(PropertyID) const = 0;
virtual WebIDL::ExceptionOr<void> set_property(PropertyID, StringView css_text, StringView priority = ""sv) = 0;
virtual WebIDL::ExceptionOr<String> remove_property(PropertyID) = 0;
virtual WebIDL::ExceptionOr<void> set_property(StringView property_name, StringView css_text, StringView priority);
virtual WebIDL::ExceptionOr<String> remove_property(StringView property_name);
String get_property_value(StringView property) const;
StringView get_property_priority(StringView property) const;
String css_text() const;
virtual WebIDL::ExceptionOr<void> set_css_text(StringView) = 0;
String css_float() const;
WebIDL::ExceptionOr<void> set_css_float(StringView);
virtual String serialized() const = 0;
virtual JS::GCPtr<CSSRule> parent_rule() const;
protected:
explicit CSSStyleDeclaration(JS::Realm&);
virtual CSSStyleDeclaration& generated_style_properties_to_css_style_declaration() override { return *this; }
private:
// ^PlatformObject
virtual Optional<JS::Value> item_value(size_t index) const override;
};
class PropertyOwningCSSStyleDeclaration : public CSSStyleDeclaration {
WEB_PLATFORM_OBJECT(PropertyOwningCSSStyleDeclaration, CSSStyleDeclaration);
JS_DECLARE_ALLOCATOR(PropertyOwningCSSStyleDeclaration);
friend class ElementInlineCSSStyleDeclaration;
public:
[[nodiscard]] static JS::NonnullGCPtr<PropertyOwningCSSStyleDeclaration>
create(JS::Realm&, Vector<StyleProperty>, HashMap<FlyString, StyleProperty> custom_properties);
virtual ~PropertyOwningCSSStyleDeclaration() override = default;
virtual size_t length() const override;
virtual String item(size_t index) const override;
virtual Optional<StyleProperty> property(PropertyID) const override;
virtual WebIDL::ExceptionOr<void> set_property(PropertyID, StringView css_text, StringView priority) override;
virtual WebIDL::ExceptionOr<String> remove_property(PropertyID) override;
Vector<StyleProperty> const& properties() const { return m_properties; }
HashMap<FlyString, StyleProperty> const& custom_properties() const { return m_custom_properties; }
Optional<StyleProperty> custom_property(FlyString const& custom_property_name) const { return m_custom_properties.get(custom_property_name).copy(); }
size_t custom_property_count() const { return m_custom_properties.size(); }
virtual String serialized() const final override;
virtual WebIDL::ExceptionOr<void> set_css_text(StringView) override;
virtual JS::GCPtr<CSSRule> parent_rule() const override;
void set_parent_rule(JS::NonnullGCPtr<CSSRule>);
protected:
PropertyOwningCSSStyleDeclaration(JS::Realm&, Vector<StyleProperty>, HashMap<FlyString, StyleProperty>);
virtual void update_style_attribute() { }
void empty_the_declarations();
void set_the_declarations(Vector<StyleProperty> properties, HashMap<FlyString, StyleProperty> custom_properties);
private:
bool set_a_css_declaration(PropertyID, NonnullRefPtr<CSSStyleValue const>, Important);
virtual void visit_edges(Cell::Visitor&) override;
JS::GCPtr<CSSRule> m_parent_rule;
Vector<StyleProperty> m_properties;
HashMap<FlyString, StyleProperty> m_custom_properties;
};
class ElementInlineCSSStyleDeclaration final : public PropertyOwningCSSStyleDeclaration {
WEB_PLATFORM_OBJECT(ElementInlineCSSStyleDeclaration, PropertyOwningCSSStyleDeclaration);
JS_DECLARE_ALLOCATOR(ElementInlineCSSStyleDeclaration);
public:
[[nodiscard]] static JS::NonnullGCPtr<ElementInlineCSSStyleDeclaration> create(DOM::Element&, Vector<StyleProperty>, HashMap<FlyString, StyleProperty> custom_properties);
virtual ~ElementInlineCSSStyleDeclaration() override = default;
DOM::Element* element() { return m_element.ptr(); }
const DOM::Element* element() const { return m_element.ptr(); }
bool is_updating() const { return m_updating; }
virtual WebIDL::ExceptionOr<void> set_css_text(StringView) override;
private:
ElementInlineCSSStyleDeclaration(DOM::Element&, Vector<StyleProperty> properties, HashMap<FlyString, StyleProperty> custom_properties);
virtual void visit_edges(Cell::Visitor&) override;
virtual void update_style_attribute() override;
JS::GCPtr<DOM::Element> m_element;
// https://drafts.csswg.org/cssom/#cssstyledeclaration-updating-flag
bool m_updating { false };
};
}